He was being held on $150,000 bond in Hartford on Thursday.
It was not clear from court documents whether Ortiz has an attorney.
A 'model inmate'
During his first day in jail, Hernandez has been "polite and cooperative" and a "model inmate," Bristol County Sheriff Tom Hodgson said.
Hernandez was being held in the jail's medical unit, which is standard for someone who hasn't been incarcerated before, Hodgson said.
The former pro athlete showed "no apparent nervousness" in jail, Hodgson said, but he noted the difficulty of going from having thousands of people cheering for him to being "just a number."
While in the medical unit, Hernandez will be locked up for 23 hours a day, with a break for a shower and phone calls, the sheriff said.